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LyondellBasell Koattro® Polybutene-1: Low VOC Polymers for Hot Melts

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Many adhesive assembly applications require bonding of complex materials and layers on fast, automated production lines with growing safety concerns during production and end-use with regards to Volatile Organic Compounds (VOC). The new isotactic semi-crystalline Polybutene-1 polymers for Hot Melt Adhesives are not only able to offer the appropriate viscosity, excellent initial tack and longer open times, but do also offer very low VOC, thanks to the metallocene catalyst technology. This technology allows to synthesize PB-1 polymers with a very narrow molecular weight distribution and a minimum amount of low molecular weight species, as confirmed through evaluations according to the VDA277 and VDA278 protocols.

PB-1 grades are available in a broad crystallinity range offering the desired flexibility and showing low organic emission levels. This key characteristic of PB-1 opens up new opportunities for Hot Melt Adhesives beyond general assembly applications, like for instance in the hygiene segment.


  • Learn about PB-1 as a new polymer backbone material for HMA's
  • Learn about the key characteristics of metallocene PB-1 in HMAs
  • Learn about the low VOC/FOG results of metallocene PB-1 versus alternative polymers


Ankur Rastogi – LyondellBasell

Ankur Rastogi holds a Master's Degree in Physics, a PhD in Polymer Technology and a Post Graduate Certificate in Business Administration (Open University, UK). He joined LyondellBasell in 2007 as Application Development & Technical Service (ADTS) responsible for Polyethylene Film & Textile segment located in Frankfurt. In 2015, he changed to ADTS Polybutene-1 Specialties and served 4 years in this role. Starting April 2019, Ankur has been appointed Business Development Manager (PB-1 & Catalloy) in the Advanced Polymer Solutions (APS) division. Prior to LyondellBasell, Ankur also has 3.5 years R&D experience in PET business with Equipolymers GmbH, Schkopau (a Dow Chemical Company & Petrochemical Industries Company, Kuwait, Joint venture).

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